18123852 has 12 divisors (see below), whose sum is σ = 42289016. Its totient is φ = 6041280.

The previous prime is 18123829. The next prime is 18123857. The reversal of 18123852 is 25832181.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×18123852² = 656948022635808, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (18123857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 755149 + ... + 755172.

Almost surely, 2^18123852 is an apocalyptic number.

18123852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18123852 is an abundant number, since it is smaller than the sum of its proper divisors (24165164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18123852 is a wasteful number, since it uses less digits than its factorization.

18123852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1510328 (or 1510326 counting only the distinct ones).

The product of its digits is 3840, while the sum is 30.

The square root of 18123852 is about 4257.2117635842. The cubic root of 18123852 is about 262.6738476511.

The spelling of 18123852 in words is "eighteen million, one hundred twenty-three thousand, eight hundred fifty-two".